This is an educational track to teach newcomers to covert channels the concept of stealthy exfiltration and examples of how to create your own covert channels using the popular Scapy packet crafting library in Python and network protocol RFCs from IETF. Talk will cover basics of Scapy and how to build a custom covert channel abusing common network protocols to mask exfiltration traffic. Emphasis on lowering detection of activity through atypical protocol manipulation and understanding the victim network defenses.